caa a22 4500 463172965 CHVBK 20180406164818.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10717-007-0002-y doi (NATIONALLICENCE)springer-10.1007/s10717-007-0002-y IR spectroscopic study of the phase composition for sodium silicate synthesized in aqueous medium [Elektronische Daten] [E. Medvedev, A. Komarevskaya] The distribution of components, phase composition, and structural features of sodium silicate synthesized in aqueous medium were investigated by IR spectroscopy. In prolonged storage in air, the substance partially cracked and its phase composition changed. Sodium silicates of different stoichiometry, free silica in the form of cristobalite, and sodium carbonate were the basic phases. The concentration gradients of sodium carbonate and water in the silicate in ambient conditions intensified from center to edges. Generation and development of cracks that perturbed the continuity of the synthesized substance were explained. It was noted that water sorbed from air is more dangerous for degradation of the structure than structurally bound water from the initial solution. Springer Science+Business Media, Inc., 2007 Medvedev E. RF Nuclear Center-VNIIÉF, Sarov, Nizhny Novgorod Region, Russia aut Komarevskaya A. RF Nuclear Center-VNIIÉF, Sarov, Nizhny Novgorod Region, Russia aut Glass and Ceramics Kluwer Academic Publishers-Consultants Bureau 64/1-2(2007-01-01), 7-11 0361-7610 64:1-2<7 2007 64 10717 https://doi.org/10.1007/s10717-007-0002-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10717-007-0002-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Medvedev E. RF Nuclear Center-VNIIÉF, Sarov, Nizhny Novgorod Region, Russia aut NATIONALLICENCE 700 1- Komarevskaya A. RF Nuclear Center-VNIIÉF, Sarov, Nizhny Novgorod Region, Russia aut NATIONALLICENCE 773 0- Glass and Ceramics Kluwer Academic Publishers-Consultants Bureau 64/1-2(2007-01-01), 7-11 0361-7610 64:1-2<7 2007 64 10717 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer